O.o I smoke in my snake room if I am in there for a long time...Dont get me wrong its not often but If I need to burn one then I will..Its why air vents were madeDont make us all out to be the devil, If there is a high enough turnover rate airwise then I see nothing wrong with it, its not preferred but your snake wont die from it.
I do agree though, its yours snake show up and say I am here to pick up MY snake...Dont leave till you have it.